| | 1 | The upcoming reduction of SAS SAS.32 contains some recent improvements in the extended source model fits. |
| | 2 | |
| | 3 | The following plots so differences between SDSS radius and magnitude measurements and the SAS.32 psphotStack results (after applying the zero point correction |
| | 4 | measured by the IPP sky calibration stage). Radius measurements are in PS1 skycell pixels (.25 arc seconds per pixel). 436 r band stacks from the central 8 x 8 degree area of the SAS2 field. |
| | 5 | |
| | 6 | In the following, "expGalaxies" are ones for which SDSS reports devFrac_r == 0. "devGalaxies" are ones with devFrac_r == 1. "Bright" is r < 19.5 |
| | 7 | |
| | 8 | First we compare the exponential model fits. |
| | 9 | |
| | 10 | Histograms of exponential radius and magnitude differences. |
| | 11 | |
| | 12 | [[Image(dexprad_hist.jpg)]] [[Image(dexpmag_hist.jpg)]] |
| | 13 | |
